at89c2051.lst

献给初学单片机的爱好者们

C51 COMPILER V8.02   AT89C2051                                                             11/27/2007 22:45:05 PAGE 1   


C51 COMPILER V8.02, COMPILATION OF MODULE AT89C2051
OBJECT MODULE PLACED IN AT89C2051.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE AT89C2051.C BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include<REG51.H>
   2          
   3          unsigned char test,record;
   4          
   5          //键盘部分程序
   6          void delayms(unsigned char ms)  
   7          {  unsigned char i;
   8   1              while(ms--)
   9   1              {
  10   2                      for(i = 0; i < 120; i++);
  11   2              }
  12   1      }
  13          bit scan_key()
  14          {
  15   1       test=P1;
  16   1       return(test ^ record); 
  17   1      }
  18          
  19           void proc_key()
  20          {
  21   1       switch(~test)
  22   1       { case 0x01: P3=1;break;
  23   2         case 0x02: P3=2;break;
  24   2         case 0x04: P3=3;break;
  25   2         case 0x08: P3=4;break;
  26   2         case 0x10: P3=5;break;
  27   2         case 0x20: P3=6;break;
  28   2         case 0x40: P3=7;break;
  29   2         case 0x80: P3=8;break;
  30   2       }
  31   1      }
  32          void main(void)
  33          {  record=0xff;
  34   1       while(1)
  35   1       { if(scan_key())
  36   2                 { 
  37   3                  delayms(10);
  38   3                  if(scan_key())
  39   3                      { record=test;
  40   4                        proc_key();
  41   4                      }
  42   3                }
  43   2        }
  44   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    121    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      2    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.

C51 COMPILER V8.02   AT89C2051                                                             11/27/2007 22:45:05 PAGE 2   


C51 COMPILATION COMPLETE.  0 WARNING(S),  0 ERROR(S)